Not ready to judge, says Perry

London: Singer Katy Perry turned down the chance to join `The X Factor` judges panel because she says she is not ready for it and it is too early in her career to be judging other singers.

The 27-year-old says she felt uncomfortable giving her verdict on wannabe singers.

There`s not actual paper contracts, but people have been interested in me judging other people. I would do it but I`m just not ready for it yet. Maybe in the future, I would love to," quoted Perry as saying.